Automatic pipe-cutting machine



Jan 2, 1923. Mlm/.92.;

. T. R A N KI N.

AUTOMATIC PIPE CUTTING MACHINE.

' FILED 001.28. 1921. 4 SHEETS-SHEET I.

y lf3 Jan. 2, '1923.- r LMQZ.,

T. RANKIN.

AUTOMATIC PIPE CUTTING MACHINE.

FlLtD OCT. 28| |921. 4 SHEETS-SHEET 2,

Jan. 2, 1923,. I 1,440,492.,

i T. RANK|N-- AUTOMATIC PIPE CUTTING MACHINE. l

FILED OCT. 28. 192|. 4 SHEETS-'SHEET 3.

Jan. 2, 1923.

T. RANKIN.

AUTOMATIC PIPE CUTTING MACHINE.

4 SHEETS-SHEET 4.

FILED OCT. 28.1921.

Application filed Jc't'obei 28,

To all fw/wmi. t may cm1/0mm.:

Be it lnoivn that l, THOMAS lli-Annie?, i citizen oi' die Unied States, and resident oi" Lelie Bliil", in the county of Lelie end State of willinois, lieve invented certain new and useful inpovements `in zin Automatic Pipe- Cuttingfj llizicliiiie, o'l which lie following is ai specification.

lli/ly invention ielites to e device for eutting section of pipe sind pziiiioiilsly to 2i novel sppsreans adept-ed to automa/smelly sevef slioii secions for iise in nienuifeetun ing nipples.

@ne oi the objects ef my invenibion provide siinple and effective eppszius adapted so economicelly piovide slio'fl@ sections olf pipe particularly sueli sec-tions as zii'e used in nisking nipples. The 'nizicliines under consideration vis so. designed that Tela-tively long sections of pipe oi" vaiving leiiglis may liev placed in the nificliine and the seid sections milioni sticelly severed into desired lengl'lis. Pi'ovision is also nizide oi' readily viiiying the lengths oi 'lie sections :ind for sccoinniedsting pipes dillereng dieniefeeis.

The invenion will be more readily understood by .reference to the accompanying 'dieiviiigs, ivliereim l Eig. l Ais e side elevation' of si device eolisti'iicted iii eecoidzince ivitli my invenieng Fig. 2 is e plan view thefeof;

3 is end view; f' Fito'. l is e -se'etionzil- View on lie liiie iw-4 olf' 6; l lig. 5 is ai view looking :it the tiiiieli i'ioin lie side opposite to inet-oi* Figs. 3 snd /lg Fig. 6 is i vertical sectional vieiven die line 6-6 of 5; p

Fig. is s ip'irzignientziiy sectional view on the line If-'Z' of' xlig. 8 ise siniiliii view on iilie line 8--8 of Fig. 2. end

i im 9 is an' enlsifged seeionel vieiv on 7 y e supper-ts f, n in iv iicli nieu-ined leige ijods il. spaced speri; and ivliicli seive :is we. on ivliieli l i y l'n une dnswings il; Will c see t is@ ine inf 1821. Serial No. 511,13.

l or reo. il 'sind liinilv lield in Dosiiion the end pieces i8, il). Pi'ojeting finislvlypilifoiigli lie end piece i8' is e Teleiiveiy med piston 2O,l lie seein 2l of ivliicli is i'liieeded and isengsged by e.k hand-Wheely The' wheel is lield 'sea-inst relative longitudinal nieveinen and isiieiefoe'is Will be een filial; by rotai'ing lie ivlieel die piston iiieJ7 lie ieeipoesed long` dinally es ieevi ed lllie red SL is liolloiv 'providing a cendiii' foi1 iiiiid undei' niessiiie, :i liese, in

:.-fi ydiciileci i 25, seivingio zeniiect elle conduilj uo e pipe 2e, slioivii in l.

'llie nieve le piston 25 is -rigid Willi piston iod 269 lie oi'iveid end ivliieli is conand 'dining.I engagement o'lilie`-cii1fei with jdie pipe lie cioss lieed iiisy'lie reiiicfed, the grippingpoins riding on lie siii'ece of lie pipe. 'lllie edjusing ineens sie piovided iii oijdei to sceonjiinedee pipes of different sizes. The niovenieni` of itlie mision to the iight, as viewed in F '93 is effected by iliiid piessiie sdnii'ed through 'lle pine connectien While nieveinene of lie piston niited glioiigli i'zli'e pipe eo* of cation of e nl nio section v e'ci'ofoveis-inno. the pissen is oonti'olled by edjiisi` inn; liliep-cs' n oi the i'eleivelv stationery 1 l10n il. lie cross liefid 27 is sliown iii cui loted 'lines-iii l in ion. I

.iii- Jdie opposie end of Jalie machine l piovide e stop consisting of a cioss niemeer inder for controllinp,Y the eective stroke of the piston and thereby the length of pipe advanced at each stroke of the piston.

3. In a pipe cutting device, the conihination of a bese providing Ways, a cross head reciproczible in Said ways, clutch jaws carried by the cross heed, ineane toi' holding a pipe in proper relation to Said Ways, zi Huid pressure cylinder and pieton 'for re ciprocating said cross head, means in said Cylinder for regulating the length of stroke of said piston, cutter, and means for vertically reciprocating the cutter in syn chronisin with the reciprocation of Said crees heed.

4. ln a device of the clase described, the combination of meansA for holding;Y a pipe, a cross head, single-acting clutch jaws in the cross head, said jaws operating to grip the pipe through movement in one direction of the cross head and to he ineffective for that purpose duringmoveinent in opposite direction, a uid pressure cylinder and piston for moving said cross head, and an adjustable head in Seid cylinder for regulating the length of stroke of said piston.

5. ln a pipe cutting device, the combination of nieaiie tot liioldinga pipe with capacity for rotation, a cutting,` disk, means for rotating they disk, a cern for effecting? the lowering of the cutting disk into contact with the pipe, Said cam being shaped to provide a .dwell whereby the disk is brought into Contact with a pipe and further movement of the disk toward the pipe is momentarily Stayed.

6. ln a pipe cutting device, the combination or" means for holding a pipe With capacity for rotation on a longitudinal axis, a cutter-head adapted for reciprocation in a plane transverse to the pipe, a cutting disk carried by the' head, a Cain also carried by the head and adapted to eiiiect movement of the disk relative to the head to bring the disle into and out of contact with a pipe, said cani lloeing provided with a dwell immediately following the beginning of its active surface whereby the inox/ement o'l' the cutting` disk toward the center of the pipe is momentarily interrupted.

Signed at Lake Blu, l'llinois, this 24th day of October, 1921.

THOMAS BANKEN. 

